July 23, 1892

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Features

Defective Boilers and Incompetent Engineers

Inventors at the World's Fair

An Improved Boiler Furnace

Improved Method of Handling Nitro-Glycerine

Improved Steam Whistles

A Salt Sprinkler for Table Use

Eruption of the Volcano of Etna

Great Mineral Water Baths

Cyrus W. Field

Inexpensive Electric Motors

A Visit to Chalcedony Park, Arizona

By H. C. Hovey

The Water Lily House at Kew

Departments

Departments

Recently Patented Inventions- July 23, 1892

Notes and Queries- July 23, 1892

Business and Personal- July 23, 1892

Index of Inventions- July 23, 1892

To Inventors- July 23, 1892

Patents- July 23, 1892

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Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

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